diff --git a/app/application.rb b/app/application.rb
index fbbb138..94d7602 100755
--- a/app/application.rb
+++ b/app/application.rb
@@ -1,6 +1,5 @@
 #!/usr/bin/env ruby
 # coding: utf-8
-Encoding.default_external = 'utf-8'
 require 'cgi'
 
 def cat(file)
diff --git a/app/submit.rb b/app/submit.rb
index 2ff81b4..bfb3265 100755
--- a/app/submit.rb
+++ b/app/submit.rb
@@ -1,6 +1,5 @@
 #!/usr/bin/env ruby
 # coding: utf-8
-Encoding.default_external = 'utf-8'
 require 'kconv'
 require 'cgi'